Calculating-machine.



PATENTED FEB. 4, 1908, A. M. JOHANSON & I. HULTMANI V GALGULATING MACHINE. v AIiPLIOATION FILED JUNE 6.1905.

2 SHBETS-SHEBT 1.

PATENTED FEB. 4, 1908.

HULTMAN.

A. M. JOHANSON & I.

CALGULATI 3C- MACHINE.

PPLICATION FILED JUNE 6,1905.

2 SHEETS-SHEET 2.

of, in which the main-wheels are them may k3 JL ii in Anoir'naonns xonanson Ann was iinLriiAN, or STOOKHOLM, swEnnN.

GALCULATIN G-MAQHINE No. erases.

To all whom it may concern:

Be it known that we, Anocr Masses Jo- HANSON andlvlin HULTMAN, both oi Stockhohn, Sweden; have invented certain new and useful Improvements in Calculating Machines, of which the following is a specification.

The invention relates to calculating inachines more particularlyto that class thererovided each with nine shiftable cogs or tee 1 adapted to be brought into and out or" active position by turning a movable disk or-the like connected with the wheel for changing the number of the active cogs.

The object of the im rovelnent is to stop,"

w'ithout failureand at t 1e exact moment the wheels acted upon by the shiftable cogsand to insure this result without increasing the resistance or aii ecting inany way the ease or" handling the machine.

The device consists of fixed and movable cams, arranged on or connected to the main wheels and adapted to coact with polygonal disks or the like provided on or connected to the gears. The invention involves also means for shifting the position of the mov-- able cams according to the number of-ac'ting cogs. M

in the annexed dre wings Figure 1 is vertical section of'a calculating machine embodying the invention. Fig. 2 is the side view of a main wheel. Fig. 3 is a substantially central sectional view of the same. Figs. 4 and 5 are side views of two of the main wheels showing the fixed cogs a and the cam a with its gaps (L0 (the ring 1', and the shifting cogs I) andtheir guides and some other parts are omitted). Figs. 6 and 7 are side views of the ring 7", the pins 2) being omitted:

The main wheels (I are fixed on a common shaft c,- which is rotated directly or indirectly by a crank in the usual manner. At each turn of this shaft 0 the sliiltable cogs b (t. ei'the ones in acting position) will turn the corresoornliiig wheels (Z (which are loose on their connnon shaft) a number of steps equal to the number of acting cogs and thereby cause the rigors disks to rotate forwards or backwards (a tion of IQSVGI'R" and show the c 2. opening sis a and the figured Specification of Letters Patent.

Application filed June 6 1905- Serial No. 263.961.

Patented set. a, recs.

when the cogs l) have passed (which would cause a wrong result in the openings 9') each wheel (1 has an angular or polygonal L SlQf, adapted to coact with earns a, r provided on the corresponding main wheel a, and on a ring a", turnahle on the shaft ofthe latter, this ring also being used for shifting thecogs in the usual manner.

The cams at, r are placed the one in front of and the other behind the cogsl fin front of and behind being meant in periphen ical direction) and are so high {in radial direction) that they will hinder turning of the 'disk f when passing the sanie;- The'one acts when the crank is turned forward, the other when the crank is turned baohr being disposed so as to coope c with the disk f for stopping the turning of the gear wheel d just when the cogs l; have left the wheel 11. B turning the ring 1 withregard rd, both to the wheel a, the position of the cam r is distance from both ends of the cog-series h.

In our machine the carrying never takes.

place while the cogs b are in mesh with the wheel d, but does occur when the fixed cogs engage the carrying wheels n, which takes place only after the cogs l) have left the wheel d. The cam a is provided with'gaps r at points in front of the disk f (in front of is here meant in radial direotidn) at the moment of carrying, so as not to hinder such carrying. As the shifting cam 7* never should cover these gaps the corresponding gaps r in said earn 9" must be enlarge-din peripheral direction. In the drawing one ofthe gaps r merges into the opening between the ends of the cam.

Referring to Figs. 4. and 5 the wheel ahas three cams with Five acting oints 1,2, 3, s3, 5. Point 1 acts when in bac award movement the cogs 3 leave the wheel (1. Point 2 acts when in forward. movement the carrying is just ended Point acts whenin l"l1-.Vl2 ll *eincnt the oarryingzj is ended. and 5 are intended to act when n .rn begun kc is retracted wit-hoot coini .og the turn.

The carrying in the constructi the drawing is effected by means THE 11% the car 25 by means of a screw or screw-like spindle 7c,

so The handling 0. the'machine is exactly the ryingwheels n, which, by means of interbers'of movable cogs b are brought in acting mediate whels m and by means of arms conposition). Then the crank is turned so nected to said wheels m c-are brought in such many full turns forward or backward as the position that they can cooperate with fixed number set up should be added or subtracted. teeth a provided on the main wheelsa. Having thus described our invention what 70 Said teeth a should be disposed so as to not we claim is lie exactly opposite each other on diiiercnt 1. In a calculating machine the combinamain wheels for avoiding two or more simultion with the main wheels and the gear taneous carryings (which could cause wrong wheels cooperating therewith, of polygonal results). The gaps a rnust of course be disdisks partaking in the movement of said gear 75 posed in accordance therewith (Figs. 4 and wheels means for actuating the register 5). The prolongation of the teeth a in pewheels and fixedand shifting cams cooperatripheral direction is adapted to stop the turning with the polygonal disks to positively ing of the carrying wheel-s7; at the proper stop the movement otsaid disks and the'figmoment. Referring to Figs, 6 and 7 the ure wheels at the proper'inoments, substan- 80 .cam 7 has one acting point, which comes tially as set fort into operation when in forward movement 2. In a calculating machine the combinathe cogs D just leave the wheel d. e V, tion with the main wheels and the fixed and The shifting of the position of the cam r movable cams, means for actuating the regisrelatively to the 'wheel a is eii'ected by means ter wheels, of means for shifting the position 85 of a worm s, mounted in bearings on the of amovable cam; consisting of a worm on the main wheel, a. worm wheel engaging the same and means for reventing movement said worrn except W en the main wheel is in zero position.

formed on the ring r. Or the-worm-wheel is substituted by pins p. The worm s is turned mounted in bearmgs' the frame of the machine and having a fork in between the prongs of Wl'llCh'lZll wing-shaped' end s of the axis of the worm enters when the main wheels are in the zero-position. The spindle k is turned by means or" a knob h sliding in a slot infthe cover and having two parallel rollers '5, between which the angular or flattened spindle k is placed.- Near each slot is to be arranged a scale of figuresfO 1'2 3 4 5 6 7 8 9' (not visible in the drawing),which shows the difierent oints to which the knob it should be shifte for properly adjustingthe cam r and at the same time-bringing the correspond- 40 .ing number of cogs b intb actingposition.

- 1 The knob h shouldnot be moved except when the wheels 11 are in their zero-position, as themovement in other cases would bring Wrong results.- For preventin such detrimental movement of the knob ii and spindle 7c, the fork 1c is flat and the adjacent wheel a has'a flange Z with a gap Z which latter is adjacent to the fork when the wheels a arein the zero-position. A spring 7', adapted to press on a disk, provided on thespindle 7c and aving two opposite notches forcatching the sprin will facilitate the adjustmentfof the spifid e is and keep it in the exact positions, so as to admit of the wing s passing between the prongs of the fork when turning the Wheels a.

I The form shownin the drawing should be understood as an example only, as the invention involves modifications.

of a movable cam, conslsting'of a worm on the main wheel, a worm wheel engagingthe said worm except w 1en the main wheel is in zero position, said means embodying a flan e mounted in the casing and having a fork opposits said gap when said wheel is in zero positlon. V

4. In a calculatin machine the combination' of the main wl i ring 1 sleeved on the shaft of the main wheel, the gear wheels having olygonal disks, shiftable cogs, the cam a aving gaps and the shiftable cam r having corresponding gaps, carrying wheels and intermediate .wheels, the carrying cams corres ending to said aps, means foractuating th whee s and means for stopping the turning of the carrying wheels at pro er intervals.

5. In a calculating mac ine,-the combina tion'of the main wheels the cams a r, a ring 7 sleeved on the shaft of the main wheel, the. gear Wheels having polygonal disks, shiftable cogs, the cam at having gaps and the shiftable cam 1* having corresponding aps carrying wheels and intermediate whee s, the carrying cams corresponding to said gaps means for actuating the register wheels and means for stopping the turning of the carrying same as in other machines of that kind. The figures in question are set up by moving the proper knobs 72, to the corresponding figures m thev scales (whereby simultaneously the {$5 movable cams r and the correspondingnumwheel and connections for shifting the position of the movable cam relatively to the main wheel.

6. In a calculating machine the combination of the main Wheels the cement W, a ring 130 on the main wheel having a gap anda spind e 100 eels, the cams a T a 105 Wheels at proper intervals, a worm, a worm- '2 means or actuating t means for stopping-the turnip? .of the carry-1 I i sleeved 0-1; the 5mm e1; wheel the gear-wheels havingpolygonaljdisks'; shift- 7 mg wheels-at. repel interva a worm, a

worm wheel an Connections for shifting'the "position of the rnoyebleeam reletielyto the: .tna'inwhee l',"means for Inevingthe spindle ofe register wheels and said worm Wheel and coiiperating means for preventing actuation thereof except when t the main wheels are in zero osition.

t In testimony Whereef We 8N8 hereunto set Our hands in presence oftwo subscribing witnesses.

IVAR Witnesses f L. ROWEPL, 7 BER rIL NYMAN.

ADOLF MAGNUSJOHA SON. 

